Unit 2 Chem 🧡 Flashcards
What is the rule for chemical symbols
Must always start with a captail letter and the rest have to be small letter
State tin
Solid
State sulphur
Solid
State zinc
Solid
State idine
Solid
Tim colr
Sliver
Sulphur colour
Yellow
Zinc colour
Sliver
Iodine colour
Dark gry
Tin s/d
Shiny
Sulphur s/d
Dull
Zinc s/d
Shiny
Iodine s(d
Shing
A substance is metal if
State at room temperature is solid, shiny or lustrous conducts electricity malleable only melts at high temperatures
Sonorous
They make a pleasing sound when struck like a symbol or a bell
Ductile
They can be drawn into a wire like electrical wiring
Dense
Heavy for their size
Carbons unusual property
Conduct electricity when isn’t a metal
Copper unusual property
Is orange tinted when metal?
Silicone unusual property
Shiny when is a non-metal?
Les unusual property
Melts quickly when a metal
Bromine, unusual property
Liquid at room temperature non-metal
Mercury, unusual property
Liquid at room temperature when metal
What happens when an element burns in air?
It reacts with oxygen to form a compound of the element and oxygen called an oxide
Metal oxides are
Alkaline
Non-metal oxides are
Acid
What is allotropy?
Atoms of the element can be put together in different ways creating different forms of the element says the atoms are also the same it is still the same element
What are the different forms of carbon?
Diamond and graphite
What are the different forms of tin?
White tin and gratin
